| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5492739 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2017 | 7 Pages |
Abstract
REWARD is a novel mobile spectroscopic radiation detector system for Homeland Security applications. The system integrates gamma and neutron detection equipped with wireless communication. A comprehensive simulation study on its gamma detection capabilities in different radioactive scenarios is presented in this work. The gamma detection unit consists of a precise energy resolution system based on two stacked (Cd,Zn)Te sensors working in coincidence sum mode. The volume of each of these CZT sensors is 1Â cm3. The investigated energy windows used to determine the detection capabilities of the detector correspond to the gamma emissions from 137Cs and 60Co radioactive sources (662Â keV and 1173/1333Â keV respectively). Monte Carlo and Technology Computer-Aided Design (TCAD) simulations are combined to determine its sensing capabilities for different radiation sources and estimate the limits of detection of the sensing unit as a function of source activity for several shielding materials.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
J.P. Balbuena, M. Baptista, S. Barros, M. Dambacher, C. Disch, M. Fiederle, S. Kuehn, U. Parzefall,